›to decide that something that has been arranged will not happen: cancel a flight/meeting/tripWhen a flight is cancelled, an airline is obliged to provide alternative transport or a refund."I canceled at the last minute,'' he said.
›LAWto officially end a legal agreement or responsibility: cancel a contract/debt/obligationLeaders pledged to cancel the debt of the world’s most indebted countries.
›LAW, BANKINGto mark a cheque or other document to show that it has been used and cannot be used again: Consumers who need a canceled check to prove that they made a payment can ask for a copy.
›COMMERCEto stop an order for goods or services that you no longer want or need: Protesters are urging the government to cancel the order for the new weapons system.